8 # usage: NAME_MAC=/dev/shm/file-with-name-space-mac sbw-parse.pl [optional-switch-snmpbulkwalk-dump]
10 use Data::Dump qw(dump);
12 my $debug = $ENV{DEBUG} || 0;
14 my @cols = qw( ifName ifHighSpeed ifAdminStatus ifOperStatus ifType dot1dStpPortPathCost ifAlias );
18 foreach my $name_mac ( qw( /dev/shm/sw-name-mac /dev/shm/wap-name-mac ), $ENV{NAME_MAC} ) {
19 next unless -e $name_mac;
20 open(my $f, '<'. $name_mac);
23 #my ( $ip, $name, $mac ) = split(/ /,$_);
24 my ( $name, $mac ) = split(/ /,$_);
26 $mac2name->{$mac} = $name;
31 my ( $mac, $name ) = @_;
35 if ( exists $mac2name->{$mac} ) {
36 my $mac_name = $mac2name->{$mac};
37 warn "ERROR: name different $name != $mac_name" if $name && $name ne $mac_name;
38 return ( $mac, $mac_name );
40 return ( $mac, $name );
43 warn "# mac2name = ",dump($mac2name) if $debug;
51 $mac =~ s/^([0-9a-f]):/0$1:/;
52 while ( $mac =~ s/:([0-9a-f]):/:0$1:/g ) {};
53 $mac =~ s/:([0-9a-f])$/:0$1/;
58 sub sw_name_mac_port {
59 my ( $name, $mac, $port ) = @_;
61 if ( exists $mac2name->{$mac} ) {
62 my $sw_name = $mac2name->{$mac};
63 $sw->{$name}->{port_for_switch}->{$port}->{ $sw_name }++;
64 #print "## $name $port $sw_name\n";
68 my $gv; # collect for graphviz
71 @files = glob('snmpbulkwalk/*') unless @files;
73 foreach my $file ( @files ) {
74 my ( undef, $name ) = split(/\//, $file);
75 print "# $name $file\n" if $debug;
77 if ( -s "/dev/shm/$file" ) {
78 if ( -M $file < -M "/dev/shm/$file" ) {
79 warn "UPDATE $file\n";
80 system "cp -pv /dev/shm/$file $file";
82 $file="/dev/shm/$file";
84 warn "WARNING: using old file $file\n";
87 open(my $f, '<', $file);
90 if ( m/::(sysName|sysLocation|ipDefaultTTL|dot1dStpPriority|dot1dStpTopChanges|dot1dStpDesignatedRoot|dot1dStpRootCost|dot1dStpRootPort|dot1qNumVlans)\./ ) {
91 my ( undef, $v ) = split(/ = \w+: /,$_,2);
92 $sw->{$name}->{$1} = $v;
93 } elsif ( m/::(ifMtu|ifHighSpeed)\[(\d\d?)\] = (?:INTEGER|Gauge32): (\d+)/ ) {
94 $sw->{$name}->{$1}->[$2] = $3;
95 } elsif ( m/::(ifPhysAddress)\[(\d\d?)\] = STRING: ([0-9a-f:]+)/ ) {
96 $sw->{$name}->{$1}->[$2] = fix_mac($3);
97 } elsif ( m/::(ifName|ifAlias)\[(\d\d?)\] = STRING: (.+)/ ) {
98 $sw->{$name}->{$1}->[$2] = $3;
99 if ( $1 eq 'ifName' ) {
100 my ( $if_name, $port ) = ($3,$2);
101 $sw->{$name}->{port_name_to_number}->{$3} = $2;
103 } elsif ( m/::(ifAdminStatus|ifOperStatus|ifType|dot3StatsDuplexStatus)\[(\d\d?)\] = INTEGER: (\w+)\(/ ) {
104 $sw->{$name}->{$1}->[$2] = $3;
105 } elsif ( m/::(dot1dStpPortPathCost)\[(\d\d?)\] = INTEGER: (\d+)/ ) {
106 $sw->{$name}->{$1}->[$2] = $3;
107 } elsif ( m/::(dot1dTpFdbPort)\[STRING: ([0-9a-f:]+)\] = INTEGER: (\d+)/ ) {
108 $sw->{$name}->{$1}->{ fix_mac($2) } = $3;
109 sw_name_mac_port( $name, $2, $3 );
110 } elsif ( m/::(dot1qTpFdbPort)\[(\d+)\]\[STRING: ([0-9a-f:]+)\] = INTEGER: (\d+)/ ) {
111 $sw->{$name}->{$1}->{ fix_mac($3) } = [ $4, $2 ]; # port, vlan
112 sw_name_mac_port( $name, $3, $4 );
115 # dot1qVlanCurrentEgressPorts
116 # dot1qVlanCurrentUntaggedPorts
117 # dot1qVlanStaticName
118 # dot1qVlanStaticEgressPorts
119 # dot1qVlanStaticUntaggedPorts
127 warn "# sw $name = ",dump($sw->{$name}) if $debug;
129 foreach my $port ( 1 .. $#{ $sw->{$name}->{ifName} } ) {
131 foreach my $oid ( @cols ) {
132 if ( $oid eq 'ifAlias' ) {
133 if ( defined( $sw->{$name}->{$oid}->[$port] ) ) {
134 print " [",$sw->{$name}->{$oid}->[$port],"]";
136 } elsif ( defined $sw->{$name}->{$oid}->[$port] ) {
137 print " ", $sw->{$name}->{$oid}->[$port];
140 #warn "MISSING $name $oid $port\n";
144 if ( exists( $sw->{$name}->{port_for_switch}->{ $port } ) ) {
145 my @visible = sort keys %{ $sw->{$name}->{port_for_switch}->{ $port } };
146 print " ",join(',', @visible);
148 if ( scalar @visible == 1 ) {
149 $gv->{$name}->{$port}->{ $visible[0] }->{ 'no_port' } = [$port,0]; # no port
157 # read neighbour visibility from lldp
160 my ($name,$port) = @_;
162 return $port if $port =~ m/^\d+$/;
163 $port =~ s{bridge\d*/}{}; # remove mikrotik port prefix
164 $port =~ s{,bridge\d*$}{}; # remove mikrotik port suffix
165 $port =~ s{,bonding\d*$}{}; # remove mikrotik port suffix
167 if ( exists $sw->{$name}->{port_name_to_number}->{$port} ) {
168 return $sw->{$name}->{port_name_to_number}->{$port};
171 # gigabitethernet1/0/45 or gi1/0/45
172 if ( $port =~ m{1/0/(\d+)$} ) {
177 if ( $port =~ m{eth(\d+)} ) {
181 my @fuzzy = grep { m/^$port/ } keys %{ $sw->{$name}->{port_name_to_number} };
182 if ( scalar @fuzzy == 1 ) {
183 return $sw->{$name}->{port_name_to_number}->{$fuzzy[0]}
186 warn "ERROR [$_] can't find port $port for $name in ",dump( $sw->{$name}->{port_name_to_number} );
191 if ( $name eq 'rack3-lib' ) {
192 $name = 'sw-lib-srv';
198 open(my $n_fh, '<', '/dev/shm/neighbors.tab');
201 my ( $sw1, $port1, undef, $port2, $sw2, undef ) = split(/\t/, $_, 6 );
202 next if $port2 =~ m/:/; # skip mac in port number (wap lldp leek)
203 next unless $sw2 && $port2;
204 $sw1 = fix_sw_name($sw1);
205 my $port1_nr = port2number( $sw1, $port1 );
206 my $port2_nr = port2number( $sw2, $port2 );
207 next unless $sw->{$sw1}->{ifType}->[$port1_nr] eq 'ethernetCsmacd';
208 $gv->{$sw1}->{$port1_nr}->{$sw2}->{$port2_nr} = [ $port1, $port2 ];
209 delete $gv->{$sw1}->{$port1_nr}->{$sw2}->{'no_port'} if exists $gv->{$sw1}->{$port1_nr}->{$sw2}->{'no_port'};
212 print "# gv = ",dump( $gv );
214 open(my $dot_fh, '>', '/tmp/network.dot');
217 graph [ rankdir = LR ]
218 node [ shape = record ]
219 edge [ color = "gray" ]
225 foreach my $sw1 ( sort keys %$gv ) {
226 foreach my $p1 ( sort { $a <=> $b } keys %{ $gv->{$sw1} } ) {
227 foreach my $sw2 ( sort keys %{ $gv->{$sw1}->{$p1} } ) {
228 push @{ $node->{$sw1} }, [ $p1, $sw2 ];
229 foreach my $p2 ( keys %{ $gv->{$sw1}->{$p1}->{$sw2} } ) {
230 push @edges, [ $sw1, $sw2, $p1, $p2 ];
231 #push @{ $node->{$sw2} }, [ $p2, $sw1 ];
237 foreach my $n ( keys %$node ) {
240 sort { $a->[0] <=> $b->[0] }
242 print $dot_fh qq!"$n" [ label="!.uc($n).'|' . join('|', map { sprintf "<%d>%2d %s", $_->[0], $_->[0], $_->[1] } @port_sw ) . qq!" ];\n!;
245 foreach my $e ( @edges ) {
247 print $dot_fh sprintf qq{ "%s":%d -> "%s":%d\n}, $e->[0], $e->[2], $e->[1], $e->[3];
254 system "dot -Tsvg /tmp/network.dot > /var/www/network.svg";